Consider the following events regarding the evolution of the Earth rsquo s atmosphere 1 The loss of ...........

Geography and Environment (HCS) World climates

Consider the following events regarding the evolution of the Earth’s atmosphere:

1. The loss of primordial atmosphere through the impact of solar wind.

2. Gases and water vapour were released from the interior of the solid earth.

3. Oxygen accumulates in the atmosphere.

Which of the following is the correct chronological sequence of the above events?

1-3-2

2-3-1

3-1-2

1-2-3

The present atmosphere of our planet Earth has evolved through the following successive stages:
First stage: The loss of the primordial atmosphere through the impact of the solar wind is a significant stage in the evolution of the present Earth's atmosphere. Primordial Earth’s atmosphere consisted mainly of hydrogen and helium; it was lost into outer space due to the impact of solar winds.
Second stage: Subsequently, the gases and water vapour that contributed to the reformation of Earth's early atmosphere were released from the interior of the solid Earth through a process called degassing.
Third stage: The emergence of photosynthetic bacteria around 3000-2500 million years ago marked an important turning point in the evolution of Earth’s atmosphere, as these organisms used sunlight, carbon dioxide, and water to produce oxygen through Photosynthesis.This led to a gradual increase in oxygen levels, first in Earth’s oceans.
Finally, when the primordial oceans were saturated with oxygen around 2000 million years ago, the eventual release of oxygen into the atmosphere gradually led to the present conditions.